errors << "From non-null returning to null returning breaking change"
            } else if (oldNullability == Nullability.NON_NULL && newNullability == Nullability.UNMARKED) {
                errors << "From non-null returning to null-unmarked returning breaking change"

        return this;
    }

    public void addArtifact(Artifact artifact) {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        return artifacts;
    }

    public void addArtifact(Artifact artifact) {
        if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        return artifacts;
    }

    public void addRequestedArtifact(Artifact artifact) {
        if (requestedArtifacts == null) {
            requestedArtifacts = new LinkedHashSet<>();
        }

                break;
            }
        }
        if (authMethod == null) {
            return null;
        }
        NtlmMessage message = authorization != null ? new Type2Message(Base64.decode(authorization)) : null;
        reconnect();
        if (message == null) {
            message = new Type1Message();
            if (LM_COMPATIBILITY > 2) {

        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setId_NotEqual(String id) {
        setId_NotTerm(id, null);
    }

    public void setId_NotTerm(String id) {
        setId_NotTerm(id, null);
    }

    public void setId_NotEqual(String id, ConditionOptionCall<BoolQueryBuilder> opLambda) {

    private final boolean lowerBoundInclusive;

    private final ArtifactVersion upperBound;

    private final boolean upperBoundInclusive;

    public static final Restriction EVERYTHING = new Restriction(null, false, null, false);

    public Restriction(
            ArtifactVersion lowerBound,
            boolean lowerBoundInclusive,
            ArtifactVersion upperBound,
            boolean upperBoundInclusive) {

        DefaultProblemCollector collector = new DefaultProblemCollector(null);

        collector.add(null, "PROBLEM1", -1, -1, null);

        collector.setSource("SOURCE_PROBLEM2");
        collector.add(null, "PROBLEM2", -1, -1, null);

        collector.setSource("SOURCE_PROBLEM3");
        collector.add(null, "PROBLEM3", -1, -1, null);

        assertEquals("", collector.getProblems().get(0).getSource());

            throw new CrawlerSystemException(
                    "URL pattern regular expression is null or blank. Cannot register client without a valid pattern.");
        }
        if (client == null) {
            throw new CrawlerSystemException("CrawlerClient instance is null. Cannot register null client.");
        }
        clientMap.put(Pattern.compile(regex), client);
    }

    /**

        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setId_NotEqual(String id) {
        setId_NotTerm(id, null);
    }

    public void setId_NotTerm(String id) {
        setId_NotTerm(id, null);
    }

    public void setId_NotEqual(String id, ConditionOptionCall<BoolQueryBuilder> opLambda) {

        SearchLogCQ cq = new SearchLogCQ();
        if (queryLambda != null) {
            queryLambda.callback(cq);
        }
        FilterAggregationBuilder builder = regFilterA(name, cq.getQuery());
        if (opLambda != null) {
            opLambda.callback(builder);
        }
        if (aggsLambda != null) {
            SearchLogCA ca = new SearchLogCA();
            aggsLambda.callback(ca);